Short answer: the JBL Partybox Encore Essential. It ranks #8 of 89 boombox speakers by sound quality, rated 4.2/5, at $329.95. The W-King X20S ranks #29, rated 3.8/5, at $150.99, $178.96 cheaper, a saving that is not big enough to make up the sound-quality gap.
The case for the JBL Partybox Encore Essential: JBL Partybox Encore Essential uses 135mm woofer + 2x 44mm tweeters. Watch for: Bass is limited by its 38Hz specification.
Why pick the W-King X20S: Clearer and smoother than the larger W-King X20 at about half its size and weight, and in side by side tests it held its own against the Harman Kardon Go + Play 3, with nicer, more exposed mids and more volume. The tradeoff: Less bass and depth than the X20 and about 3dB quieter, and at maximum volume its mids and highs start to drown out the bass.
Buy the JBL Partybox Encore Essential. It is rated higher for sound quality, and saving $178.96 with the W-King X20S does not make up for the sound-quality gap.
Water resistance is not close: the W-King X20S is rated at IPX7 (brief submersion), well ahead of the JBL Partybox Encore Essential at IPX4 (splashing).
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| JBL Partybox Encore Essential | W-King X20S | |
|---|---|---|
| Price | $329.95 | $150.99 |
| Ranked | #8 of 89 in Boombox Size Portable Bluetooth Speakers | #29 of 89 in Boombox Size Portable Bluetooth Speakers |
| App | Yes (JBL PartyBox app) | - |
| Aux Input | Yes | Yes |
| Aux Latency | 17ms | - |
| Bass Extension (-10dB) | 38Hz | - |
| Battery Life | 6 hours (Manufacturer specified) | - |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | - |
| Built-in Microphone | No | Yes |
| EQ | Yes (3 band App EQ) | - |
| IP Rating | IPX4 | IPX7 |
| Bluetooth Latency | 100ms | - |
| Party Mode | Yes (PartyBoost up to 100 speakers) | - |
| Power Bank | Yes (USB-A, 5V/0.5A) | - |
| Power Input | AC Power cord | - |
| Stereo | Yes | - |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | Yes |
| Weight | 13 lbs (5.9 kg) | 13.8 lbs (6.25 kg) |
| Bluetooth Version | 5.1 | 5.4 |
| Amplifier Power | 100W RMS | 140W RMS (180W peak) |
| Dimensions | 10.9” x 12.9” x 11.5” (276 x 327 x 293 mm) | - |
| Drivers | 135mm woofer + 2x 44mm tweeters | - |
| Maximum SPL | 110dB (measured by Alan Ross Reviews) | - |
| Digital Aux Input | No | - |
| Strap | No | Yes (detachable shoulder strap) |
| MicroSD Playback | - | Yes |
| FM Tuner | - | Yes |
Related Speaker Comparisons
More top alternatives to JBL Partybox Encore Essential:
- Tribit Stormbox Blast vs JBL Partybox Encore Essential
- Harman Kardon Go + Play 3 vs JBL Partybox Encore Essential
- JBL Partybox Encore 2 vs JBL Partybox Encore Essential
- JBL PartyBox On-The-Go 2 Plus vs JBL Partybox Encore Essential
- JBL Partybox Encore Essential 2 vs JBL Partybox Encore Essential
Prices on this page were last checked September 30, 2026 at 2:57 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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The Two Speakers In Full
JBL Partybox Encore Essential: $329.95 Amazon eBay
Newer model: the JBL Partybox Encore Essential 2, ranked higher, rated 4.3/5.
Pros: JBL Partybox Encore Essential uses 135mm woofer + 2x 44mm tweeters. Its 5.9 kg, claimed 6 hours (Manufacturer specified) battery life, IPX4 protection, aux input, up to 110dB and stereo playback make it a practical option for its intended room or portable use. Measured bass extension of 38Hz (-10dB).
Cons: Bass is limited by its 38Hz specification.
Full JBL Partybox Encore Essential review and specifications →
| Amplifier Power | 100W RMS |
|---|---|
| App | Yes (JBL PartyBox app) |
| Aux Input | Yes |
| Aux Latency | 17ms |
| Bass Extension (-10dB) | 38Hz |
| Battery Life | 6 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 100ms |
| Bluetooth Version | 5.1 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 10.9” x 12.9” x 11.5” (276 x 327 x 293 mm) |
| Drivers | 135mm woofer + 2x 44mm tweeters |
| EQ | Yes (3 band App EQ) |
| IP Rating | IPX4 |
| Maximum SPL | 110dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | Yes (PartyBoost up to 100 speakers) |
| Power Bank | Yes (USB-A, 5V/0.5A) |
| Power Input | AC Power cord |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 13 lbs (5.9 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: JBL giving it to us large! The good, The bad, The diabolical! More from alanrossreviews →
- DLX Willington: Called It!🤣 JBL Partybox Encore VS Essential, with binaural sound sample. More from DLXWillington →
- Jay’s Straight Up Reviews & More: Triple Threat 💸 $200 Challenge 🔋 Soundcore Rave Party 2, W-King H10, JBL Partybox Encore Essential More from JaysStraightUpReviews →
- Jay’s Straight Up Reviews & More: Klipsch Gig XXL vs JBL Partybox Encore Essential (Pee-Wee) - Indoors, Plugged In🔌 Bluetooth Speakers
- Head-to-Head Comparisons
- JBL Partybox Encore Essential vs Aiwa Exos-9
- JBL Partybox Encore Essential vs JBL Partybox Encore
- JBL Partybox Encore Essential vs JBL Partybox Encore Essential 2
- JBL Partybox Encore Essential vs Vifa Copenhagen 2.0
- JBL Partybox Encore Essential vs Yeahbox Sonic Boom Ultra
- JBL Partybox Encore Essential vs JBL PartyBox On-The-Go 2 Plus
- JBL Partybox Encore Essential vs JBL Partybox Encore 2
- JBL Partybox Encore Essential vs Harman Kardon Onyx Studio 8
- See all 76 comparisons
W-King X20S: $150.99 AliExpress W-King eBay
Pros: Clearer and smoother than the larger W-King X20 at about half its size and weight, and in side by side tests it held its own against the Harman Kardon Go + Play 3, with nicer, more exposed mids and more volume. 140W RMS (180W peak), IPX7, Bluetooth 5.4, a built-in microphone, TF card, USB and aux playback, FM radio, a carry handle and a shoulder strap.
Cons: Less bass and depth than the X20 and about 3dB quieter, and at maximum volume its mids and highs start to drown out the bass. With a flat EQ the bass is cut off, so it needs the bass boost. The JBL PartyBox Encore Essential 2 sounded better in a direct comparison. Sold direct from W-King in the US.
Full W-King X20S review and specifications →
| Amplifier Power | 140W RMS (180W peak) |
|---|---|
| Aux Input | Yes |
| Bluetooth | Yes |
| Bluetooth Version | 5.4 |
| Built-in Microphone | Yes |
| FM Tuner | Yes |
| IP Rating | IPX7 |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Strap | Yes (detachable shoulder strap) |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 13.8 lbs (6.25 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Jagist reviews: W-king X20 Vs W-king X20S!!! More from Jagistreviews →
- Jagist reviews: W-king X20s Vs Harman Kardon Go Plus Play 3!!!
- Mateusz Cholewa: 140W W-KING X20S vs 160W HK Go Plus Play 3 More from Mateusz Cholewa →
- Jagist reviews: Jbl Encore Essential 2 Vs W-king X20s!!!
- Jagist reviews: W-king X20s Vs Tribit Stormbox Blast!!!
- Head-to-Head Comparisons